Episode Details

This story was originally published on HackerNoon at: https://hackernoon.com/your-ai-chat-will-break-in-production-3-lifecycle-bugs-nobody-warns-you-about.
Your AI chat works in dev and breaks in prod. Three React lifecycle bugs in LLM streaming — stale closures, lost tokens, background kills — and how to fix them
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TL;DR: A stream and React are two different lifecycles — fail to sync them and your AI chat breaks silently in prod. Three fixes: (1) Stream Identity — unique ID per stream, every callback checks if it's still current; (2) Explicit Cleanup — close the connection, mark the chat stale, force-fetch on return; (3) Resume, not restart — pick the stream up from a sequence cursor instead of regenerating. Underlying rule: push-based data shouldn't live in React state directly.